VibroSystM DMV-100, Installation Manual

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47 DMV-100 Rotor Creep and Speed Detector - Installation Manual
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Decimal point position : The decimal point position for scaling values depends on the decimal point
position setting. Up to four digits below the decimal point can be displayed.
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NPUT ADJUSTMENT PARAMETERS
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Average type : average processing of input values smooths the displays and outputs for inputs with
extreme fluctuations, such as spike noise. There are two types of averaging: “simple” and “moving”.
- Simple averaging is used when the display refresh period is to be lengthened.
- Moving averaging is used to remove periodic noise superimposed on input signals.
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Average times : The data refresh periods when averaging is used are given in the following table
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Auto-zero time A : The frequency can be force-set to zero if there is no input pulse for a set period. The
display will not easily return to zero if the auto-zero time is too long or left at the default setting.
Due to the principle of forecasted cycle calculation, the frequency will not become zero even if the
input signal is cut off. The time from cutoff of the input pulse to the zeroing of the measurement
frequency is called the auto-zero time. A value from 0.0 to 2999.9 can be specified.
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Power interruption memory : The measured value can be recorded when the power supply is inter-
rupted. This function is not used by the DMV-100 system and can be set to OFF.
Set value Refresh period
No averaging 1 Every 20 ms
Simple average 2 Every 40 ms
4 Every 80 ms
8 Every 160 ms
16 Every 320 ms
32 Every 640 ms
64 Every 1.28 s
128 Every 2.56 s
256 Every 5.12 s
512 Every 10.24 s
1024 Every 20.48 s
Moving average 1 to 1024 Every 20 ms